Detachable plowshare



l 1.o. BOHMKER.

DETACHABLE PLOWSHARE. FILED MAY |4.'19 2o.

l i itsaim the provision-otsecuring means of Y Patented @en 19,l k1922.

g .entre Jorrit o. BOHMKERQ or `:eaantra?,rniiritors, ,assm'ivoa To snAns, nonBUcK annuo., n

1439222 FFI.

'OF CHICAGOQILLINOIS, .A CORTPORATION 0Fv 'NEW YORK.

DETACHABLE PLOVSHARE. l

appiicauon fired May i4, i920. serial No. 381,467.

17 1o all whom 25p/mrtg concern: y

4Bel it known that l, Jorrit G'Bonivinsii,

a citizen of the United States, residing at.

plow for the purposes of renewal, resharp-v erliingaiid thelike; andthe object of the'y iiiventionis to providev impinved `means for `V`securingy the share in o erative, ositioii.

More specilically, the invention has for the character indicated which is of extreme# ly simple i construction so. that it mayk vbe cheaply manutacturedffiand which 'at' thek same tii'ne. is capable koiholuick and easy operation in securing or detachmg the share, while serving to effectively maintain l `the parts in operative associationf The ob'ect of the invention lthus vener-y ally stated, together with other and an- -cillary advantages which will lbe` apparent troni the following description', may be lat# tained by the construction and arrangement shown iii the accompanying drai'vings torniiiig kpart hereof, in which Figure'l is a fragmentary side elevation of a plow equipped with my' invention. .'Fig. 2 is an underside plan `view oi the plow. Fig. 3

is a perspective View of the share detached.

ln ythe drawings, 7 designates a frog? ywhich is, generally speaking, of the usual construction and adapted to be secured in any suitable way (not shown) to the supporting beam of the plow. the moldboard of the plow, which is secured upon the frog inA any suitable and well known manner,` and 9 indicates lthe n plow share which is adapted to operatively pose cut away at its lower forward edge as v at 12. n

`'lfhe share 9 comprises a'landside portion 8 designates or flange 9a and a share blade 912( and. isy

adapted to lit ,over the frog witlithe toe` 11 entered between the share blade 9b and a stud-13 projecting laterally from the innerside of the landside portion 9a. llt will be seen that by reason of the rpeculiar coactioii or"r lthe toe with the inclined under surfaceof the share blade,'the upper surace of the ltoe being correspondingly. iiiclined, the i rearward movement of the share with reference toy therog willy effect a i wedgiiig engagement ot the frog between the share blade andr .the'stud 13 The share blade as' shown in Fig.v

arranged tofoverlie thefplate 7b` oit-the frog,y

andthe securing meansr 10 is adapt-edito l connect y:the share"blade. with the moldk board'and the frog. To this end', the share blade is provided upon its under surface A withy a pair of hook members 14k and. 14arigidly secured` inposition as by means of' bolts 15 and extending in an upward and Arearward direction.. F or 1 receiving y the member lathe plate Tlofthe frogI is provided with` a-suitably disposed notch 16` adapted to neatly receive the 'hook member l1st. Said member is bent to provideiaspace between it andthe under surface ot' the sharerblade, to receive a portion ofthe plate 7b Aprojecting beyond the lowerv edge' of the'moldboard. .f p f The' securing kmeans 10 comprises a' screw'- ed in a'bearing bracket 18 which, is secured upon `the under side of the mold boa-rd at the Vthreaded member or tension rod; 17rmount, i

upperend thereof, as by means of. bolts 19;

Aknurledhand wheel 20 isthreadedonto 'f the end of the rod 17 'and is adaptedl toen-I gage with the bearingbracket 18 toiellfect.y the rearward movement of the rod. At its JforwardA end the rod is pivotally connected with a lever` member 21 midway between the endsthereot, one end of said lever being.

apertured so as to be adapted yto detachably y l engage with the hook member 14a. At itsy opposite end the lever 21 carries a. link 22,

the free end of which is adapted to. detach-y y tive positioime guide bleek provided upon the underside of the 1m Id`bo:U'd, adi jacent the hook member ,if-IL, which block has :i portionpr-ojeetinp; 1eeyond the.. forward edgfe ofthe mold. board so 21s to. guide the. share blade es it is drawn rearward' into'operntivel association with the mol-dr board; yhe hook member le?. likethe member 14, is beni'l so as to reeeivefbetfween it und the shere binde said projecting end of the guide block.

t willA be apparent 'that by properly` proL portioning thev pzrrte,the' degree o* pull eX- erted by the securing mea-ns lOupon the respective'hooks lezlnd lemme-y be distributed :is desired. Vln the present embodiment et' the inventioir it will be noted'. t'h-zrtith'e" pivotal connection 015 the' rod 1'1" wi'ththe lever.` is such as toineeomplish' n. greater pull upon thehookmember lll-f so as to insure they iiin engagement/Ji the share with the toe of' the frog;` als Well* as the pvoper'aline'- ment of the share' l'ilade' vifithfthe mold board,

It will be seeirtfhat` I have[producedy eide tuel ble'plow sh'arefot e.: very practicalA character. rPhe securing;"meansfisoff n. verysimple ronstruetioneo that the: costY of meente@ ture is reduced to @iL-minimum.. and at the seme time it is possibleto rigidly seeurethe ing` wshzlrerbllde imd zrlmidside adapted to vmembers and said mold"boerdheving a part secured` thereto 'for insertion between the other one ofszud' hook members and'` the share' blade, Smd hook members projecting et their free ende downwardly away from the adjacent upper edge of' the share blade wherebyy to receive between them and the Share. bilrde the on the one hand und seid part ofv the mold hoard on the otherl hand, and meansdetecliablifv securingtheopposite ends oieeid lever to said hook inem bers.V

2. nfa'plow', the combination with u t'rog. ande-mold boerdseeured thereto, seid mold beard lhaving" e projectingguidebloek, of e.; plowshare having e rmir otf upwarilly extending' hooksseeured thereto, one of seid hooks lapping; underthe edgeof the frog` und the. .other bool( lapping; underthe' edge of" the guide block. whereb)` Huid 'frog and Suid guide bloei; :ire coni'inedbetween' the hooks and the sha-treyand :1 tensioniu device mounted on the mold boerdr und ineluding a: lever' connected et its opposite ends tosaid vhooks respectively- Iii-testimony whereof', lie-vehereunto set my hand. A

- Jenn e. Born/1Km. f 

